gpu: nvgpu: add init_preemption_state gr method

This method is called when setting up gr
hardware. It is meant to adjust preemption
parameters.

Bug 1593548
Jira VFND-1894

Change-Id: I0f5aa3212bec3058a0493366bed6fe2a365c9542
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: http://git-master/r/1162625
(cherry picked from commit c2e6d12570af28b3aae087401d7f670df40d40bd)
Reviewed-on: http://git-master/r/1166987
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
index 0c64fcba..638f47f5 100644
--- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
@@ -4587,6 +4587,12 @@ static int gk20a_init_gr_setup_hw(struct gk20a *g)
         if (err)
                 goto out;
 
+        if (g->ops.gr.init_preemption_state) {
+                err = g->ops.gr.init_preemption_state(g);
+                if (err)
+                        goto out;
+        }
+
         /* disable fe_go_idle */
         gk20a_writel(g, gr_fe_go_idle_timeout_r(),
                 gr_fe_go_idle_timeout_count_disabled_f());